MAY 8th.— The Convention has appointed five members of Congress to go to Montgomery: Messrs. Hunter, Rives, Brockenborough, Staples, and ———. I have not yet seen Mr. Hunter; he has made no speeches, but no doubt he has done all in his power to secure the passage of the ordinance, in his quiet but effective way. To-day President Tyler remarked that the politicians in the Convention had appointed a majority of the members from the old opposition party. The President would certainly have been appointed, if it had not been understood he did not desire it. Debilitated from a protracted participation in the exciting scenes of the Convention, he could not bear the fatigue of so long a journey at this season of the year.